/*
 * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.vanniktech.emoji.sample;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

/**
 * EmojiUtil
 *
 * @since 2021-06-28
 */
public class EmojiUtil {
    /**
     * 判断字符串包含表情
     *
     * @param value String
     * @return flag
     */
    public static boolean containsEmoji(String value) {
        boolean flag = false;
        try {
            Pattern p = Pattern
                    .compile("[^\\u0000-\\uFFFF]");
            Matcher m = p.matcher(value);
            flag = m.find();
        } catch (Exception e) {
            flag = false;
        }
        return flag;
    }

    /**
     * 判断是否包含字符串
     *
     * @param value String
     * @return flag
     */
    public static boolean containsChar(String value) {
        boolean flag = false;
        if (containsEmoji(value)) {
            Pattern p = Pattern
                    .compile("[^\\u0000-\\uFFFF]");
            Matcher m = p.matcher(value);
            value = m.replaceAll("");
            if (!value.equals("")) {
                flag = true;
            }
        } else {
            flag = true;
        }
        return flag;
    }

    /**
     * 判断字符串包含表情
     *
     * @param value String
     * @return flag
     */
    public static boolean onlyEmoji(String value) {
        boolean flag = false;
        try {
            Pattern p = Pattern
                    .compile("[^\\u0000-\\uFFFF]");
            Matcher m = p.matcher(value);
            flag = m.matches();
        } catch (Exception e) {
            flag = false;
        }
        return flag;
    }
}
